The NTK Valve 1.0" Condenser Microphonefrom Rode is a large-diaphragm condenser microphone which employs Class-A valve circuitry resulting in a warm sonic character. The NTK is designed for vocal and general instrument recording, while providing the sonic character found in higher-priced tube microphones. The capsule features a mylar dual diaphragm sputtered in gold to provide transparent signal reproduction and wide frequency response.
The hand-selected and graded 6922 twin-triode valve comprises the core of the NTK's circuitry, providing an analog "warmth" and presence that meets the standards of the most demanding engineers. The microphone features a custom-built, Mu-metal transformer developed by Jensen Transformers. The end result is quiet, noise-free output at high-gain levels. The NTK features a separate power supply, providing +48V phantom power. In addition, variations of cardioid, omnidirectional, and figure-8 polar patterns provide a total of 9 selectable patterns.
Tube Circuitry
The Rode NTK features the 6922 twin-triode valve at the heart of its circuitry. The result is a warm sonic character found in higher-priced tube microphones
Quality Transformer Design
The custom-designed, Jensen Mu-metal transformer provides a low-noise high-gain signal path on output.
9 Polar Patterns
Variations of cardioid, omnidirectional, and figure-8 provide a total of 9 selectable polar patterns.
Separate Power Supply
A separate power supply provides +48V of phantom power.
| Operating Principle | Pressure Gradient |
| Transducer | Condenser |
| Diaphragm | 1.0" / 25.40 mm |
| Tube | Yes |
| Polar Pattern | Cardioid |
| Frequency Range | 20 Hz to 20 kHz |
| Equivalent Noise Level | 12 dB A-Weighted |
| Maximum SPL | 158 dB SPL 1% |
| Impedance | 200 ohms |
| Sensitivity | -38 dB @ 1 kHz, re: 1 V/Pa |
| Output Connectors | 3-pin XLR |
| Length | 8.19" / 208 mm |
| Diameter | 2.17" / 55 mm |
| Weight | 26.81 oz / 760 g |